Rotatively indexed spray-painting machine

ABSTRACT

A machine supporting a sub-assembly of masks and work pieces on a mechanism that moves this sub-assembly with a rotary motion between a spray chamber and a loading station, while automatically shifting the relative placement of the masks and the work pieces between a spraying relationship and a loadingunloading clearance.

United States Patent 11 1 1111 3,890,921 Szcze anski June 24, 1975 [54]ROTATIVELY INDEXED SPRAY-PAINTING 2,395,960 3/ 1946 Clark et al.ll8/DIG. 7 MACHINE 2,783,708 3/1957 LaGoy 118/301 x 3,379,173 4/1968Szczepanski 118/301 Inventor: Harry szclepanskl, 900 Clancy 3,427,9642/1969 Vasilantone 101/126 x N.E., Grand Rapids, Mich. 49503 [22] Filed;No 1, 1971 Primary ExaminerJohn P. McIntosh Attorney, Agent, orFirm-Glenn B. Morse 21 Appl. No.: 194,164

C 118 4 118 301 118 319 [57] ABSTRACT [52] US' I. l l18//326 A machinesupporting a sub-assembly of masks and [51] Int Cl B05c 11/12 B050 11/16work pieces on a mechanism that moves this sub- [58] Field 118/301 32 7504 assembly with a rotary motion between a spray cham- 118/4 3 ber anda loading station, while automatically shifting the relative placementof the masks and the work [56] References Cited pieces between aspraying relationship and a loading- UNITED STATES PATENTS unloadmgclearance 2,358,258 9 1944 Schweitzer 118/301 x 5 Claims, 66 DrawingFigures PMENTEDJIMms 3,390,921

SHEET I I INVENTOR Szcgzepnski BY W A TTOF/VE Y PATENTED JUN 2 4 I975 3Hurry Szczeponski BY 13W ATTORNEY I/ /l/l/7 Hi I34 I320 0/ Q HI" IHI llINVENTOI? Harry zczpcnski ATTORNEY PATENTEnJuu24'is1 I 3,896,921

'- sum 1 5 Harry Szczepunski BY @zw TTOR E PATENTEDJUN 24 I975 IIVV ORSzcze ki B w fit Q6)? A T NEY PIfiNTEIJJUN 24 I975 SHEET IN VE N T01?Harry Szczeponski By h W1 A TTOR/VE Y PATENTEDJUN24 I975 SHEET ATTORNEYPATENTEIJJIJN24 I975 3, 90 921 SHEET 14 i -273 @296 0 267 r 265 Fig, 36

38 2 67 301 Z I I I'M-1Q .lm I k 295 225 Fig.3? 269 2940 267 r H 7 Fig.3a

lNl/E/VTOR Fi 40 Harry Szczepdnski ATTORNEY PATE NTEnJuuu ms 3,890,921

sum 17 ya-"ta I V Hurry szcze E F. 6

ATTORNEY .Pmmnmumms 3390,9 SHEET 1.9 v

' ATTOR /VEy I Hor r'y SzczepunsE

1. A spray-painting machine including a housing defining a spraychamber, spray gun means disposed to project spray within said chamber,ventilation means operative to maintain a flow of air within saidchamber, wash means providing at least one water curtain within saidchamber, and carrier means rotatably mounted in said housing on avertical axis of rotation, said carrier means having at least two setsof related workpiece-holding and mask-holding means, said sets beingangularly displaced from each other about the axis of rotation of saidcarrier means, said machine also including an indexing mechanism adaptedto rotate said carrier means between positions in which each of saidsets is, in turn, placed at said loading station and in said chamber,wherein the improvement comprises: actuating means operative to move themask-holding means of said two sets oppositely, respectively, tospraying position in said chamber and a position providing clearanceover said loading station, said mask-holding means being a unitarystructure pivotally mounted on said carrier means at the central portionthereof and adapted to rock between said opposite positions.
 2. Amachine as defined in claim 1, wherein said actuating means isresponsive to said indexing mechanism.
 3. A machine as defined in claim1, wherein said carrier extends in cantilever relationship over the topof a wall defining the lower extremity of an opening in said housingcommunicating with said chamber.
 4. A machine as defined in claim 1,additionally including means mounted on said carrier means and forming avertical guideway for said workpiece-holding means, and also includingpositioning means adapted to move said workpiece-holding means to andfrom a lower position disengaged from a mask carried by saidmask-holding means and an upper position engaged therewith.
 5. Aspray-painting machine including a housing defining a spray chamber,spray gun means disposed to project spray within said chamber,ventilation means operative to maintain a flow of air within saidchamber, wash means providing at least one water curtain within saidchamber, woRkpiece-holding means, mask-holding means, and carrier meansrotatably mounted in said housing on a vertical axis of rotation, andadapted to transfer said workpiece-holding and mask-holding meansbetween a loading station and said chamber, said carrier means having atleast two sets of related workpiece-holding and mask-holding means, saidsets being angularly displaced from each other about the axis ofrotation of said carrier means, said machine also including an indexingmechanism adapted to rotate said carrier means between positions inwhich each of said sets is, in turn, placed at said loading station andin said chamber, wherein the improvement comprises: an actuatorincorporated in said indexing mechanism and mounted on the exterior ofsaid housing at the top thereof, said actuator being adapted toreciprocate said carrier means through a sector of substantially 180*.